You can add a texture or colour swatch to a style catalogue as a material style. Materials are tiled over the surface of the object to which they're applied.
For colours, enter the hexadecimal value representing the colour, or click Browse and navigate to the file representing the colour.
The supported colour format is <xRRGGBB(AA)> or <#RRGGBB(AA)> with R, G, B and A being the hexadecimal representations of the red, green, blue and alpha channels of the colour. The definition of the alpha channel is optional. It defaults to FF, which is fully opaque.
For more information regarding these settings, refer to Edit Styles.
The style thumbnail appears in the catalogue. Click in the name area to rename it.